Elevating your feet, staying active, wearing compression socks, and cutting back on salt are the most effective ways to reduce foot swelling. Most swelling in the feet and ankles comes from fluid pooling in the lower legs due to gravity, prolonged sitting or standing, or too much sodium in your diet. The good news is that mild to moderate swelling usually responds well to simple changes you can start today.
Elevate Your Feet Above Your Heart
Gravity is the main reason fluid collects in your feet and ankles. When you sit or stand for hours, blood and lymph fluid naturally settle downward. The simplest fix is reversing that pull: lie down and prop your feet on pillows so they rest just above heart level. This lets fluid drain back toward your core through veins and lymph vessels that no longer have to fight gravity.
Try to do this several times a day, especially after long periods of standing or at the end of the workday. Even 15 to 20 minutes in this position can make a noticeable difference. If you work at a desk, a footrest that keeps your legs slightly elevated (even below heart level) is better than letting your feet dangle flat on the floor.
Move Your Calf Muscles
Your calf muscles act as a built-in pump for your veins. Every time you flex your calf, you squeeze blood upward toward your heart. Sitting still for hours shuts that pump off, and fluid starts to pool. Even small, targeted movements can restart it.
Three exercises work particularly well and can be done at your desk, on a plane, or while watching TV:
- Ankle pumps: Pull your toes up toward your shin, then point them down toward the floor. Repeat 5 to 10 times. This is the single most effective seated movement for activating the calf pump.
- Ankle circles: Rotate each ankle in slow circles, which also helps reduce stiffness in a swollen joint.
- Heel raises: While sitting with feet flat on the floor, lift your heels while keeping your toes down. If you can stand, hold onto a counter and rise up onto the balls of your feet, then slowly lower. Repeat 5 to 10 times.
Walking is the best overall activity for preventing foot swelling because it engages the calf pump continuously. If your job keeps you on your feet in one spot, shifting your weight and doing heel raises throughout the day helps more than standing still.
Wear Compression Socks or Stockings
Compression garments apply steady pressure to your lower legs, preventing fluid from settling into the tissue. They come in different pressure levels measured in millimeters of mercury (mmHg), and choosing the right level matters.
- 15 to 20 mmHg (mild): Good for early or mild swelling, tired legs from standing, or travel. These are available over the counter and feel similar to snug athletic socks.
- 20 to 30 mmHg (moderate): A common starting point for people with recurring swelling or varicose veins. Some are sold over the counter, though a fitting can help.
- 30 to 40 mmHg (firm): Used for more persistent swelling, especially in the lower legs where gravity creates a heavier fluid load. These typically require a prescription or professional fitting.
Put compression socks on first thing in the morning, before swelling has a chance to build up. If you wait until your feet are already puffy, getting the socks on is harder and they’re less effective. For travel days or long shifts, even a mild pair from a drugstore can make a real difference.
Reduce Your Salt Intake
Sodium causes your body to hold onto water. When you eat a salty meal, your kidneys retain extra fluid to keep sodium concentrations balanced in your blood, and some of that fluid ends up in your tissues, particularly your feet and ankles.
For people dealing with swelling, guidelines from Georgetown University’s nephrology department recommend limiting sodium to roughly 1,375 to 1,800 mg per day. That’s significantly lower than what most people eat. The average American consumes over 3,400 mg daily, much of it hidden in processed foods, restaurant meals, canned soups, deli meats, and condiments like soy sauce. Reading nutrition labels and cooking more meals at home are the two most practical ways to bring your number down.
Stay Hydrated
It sounds counterintuitive, but drinking enough water actually reduces fluid retention. When you’re dehydrated, your body responds by holding onto whatever water it has, which can worsen swelling. Staying well hydrated signals your kidneys that it’s safe to release excess fluid and sodium. Plain water is ideal. Sugary drinks and excess caffeine can work against you by affecting how your kidneys handle fluid balance.
Massage the Swelling Toward Your Heart
Gentle massage can help move trapped fluid out of swollen feet and ankles. The key is direction: always stroke upward, from your feet toward your knees, using firm but comfortable pressure. This follows the natural path of lymph drainage and venous return. You don’t need a professional for this. Spending a few minutes after elevating your legs, stroking firmly from ankle to knee, can speed up the process. Avoid deep or painful pressure, which can damage tissue or worsen inflammation.
What About Epsom Salt Soaks?
Epsom salt foot baths are a popular home remedy, and soaking swollen feet in warm water can feel soothing. However, the evidence that magnesium sulfate absorbs through the skin in meaningful amounts or directly reduces swelling is limited. Any relief you feel is more likely from the warm water and the act of sitting with your feet still than from the salt itself. There’s nothing wrong with an Epsom salt soak for comfort, but it shouldn’t replace elevation, compression, or movement as your primary approach.
When Swelling Points to Something Bigger
Most foot swelling is harmless, caused by standing too long, a hot day, a salty meal, or pregnancy. But certain patterns signal something that needs medical attention.
Swelling in only one leg, especially if it’s accompanied by warmth, redness, or pain in the calf, can be a sign of a blood clot (deep vein thrombosis). This is a medical emergency because the clot can travel to the lungs. If both legs swell and you’re also experiencing shortness of breath, difficulty breathing while lying flat, or unusual fatigue, that combination can point to heart failure or a related cardiovascular issue. Swelling that leaves a lasting dent when you press a finger into it (called pitting edema) and doesn’t improve with elevation over several days is also worth getting checked.
When Home Remedies Aren’t Enough
If lifestyle changes don’t bring your swelling down, a doctor may prescribe diuretics, often called water pills. These medications help your kidneys flush out excess sodium and water. They’re effective but come with trade-offs: common side effects include muscle cramps, fatigue, headaches, and electrolyte imbalances, particularly low potassium. Some types are designed to prevent potassium loss, so your doctor will choose based on your specific situation. Diuretics treat the symptom, not the cause, so figuring out why you’re retaining fluid in the first place is the more important step.
Persistent or worsening swelling can stem from kidney problems, liver disease, certain medications (especially blood pressure drugs and anti-inflammatory painkillers), or conditions that affect lymph drainage. If your feet stay puffy despite consistent elevation, compression, reduced salt, and regular movement, that’s a signal to dig deeper with a healthcare provider rather than just adding more home remedies.